Veneer-box-shaping machine.



No. 865,468. PATENTED SEPT. 10, 1907. S. E. WRENN & D. MARTIN. VENEERBOX SHAPING MACHINE.

APPLICATION FILED OGT.16,1905.

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UNITED STATES? SAMUEL E. WRENN AND DANIEL MARTIN, OF PORTLAND, OREGON.

VE NEER-B OX-SHAPING MACHINE.

Specification of Letters Patent.

Patented Sept. 10, 1907.

Application filed October 16, 1905. fierial No. 282,991.

To all whom it may concern:

Be it known that we, SAMUEL E. WRENN and DANIEL M ARTIN, citizens of theUnited States, and residents of Portland. in the county of Multnomah andState of Oregon, have invented a new and useful Improvement inVcneer-liox-Shaping Machines, of which the following is a specification,reference being had to the accompanying drawings as constituting a partthereof.

Our invention relates to machines designed to cut a stack of veneer woodinto sizes and shapes suitable for making fruit boxes, and it has forits object to obtain a machine which is provided with a removableknifecarrier, so that the machine may be conveniently changed to cutvarying sizes of veneer strips, and which possesses besides the specialfeatures hereinafter described and claimed.

In the drawings, Figure 1 is a perspective view of our machine, showingthe same in operation; Fig. 2 is a plan of the reciprocating frame ofour machine, with the knife-carrier, thereby carried, in position as inpractice; Fig. 3 is a side elevation of such reciprocation frametogether with the knife carrier supported thereby, the left portionsbeing shown in section; Fig. 4 is a transverse section on a line A-A ofFig. 3; Fig. 5 is a partial plan of the knife carrier, on a largerscale, parts being shown in section; and Fig. 6 is a partiallongitudinal section of said knife carrier, on a scale agreeing withFig. 5.

The letters designate the parts referred to;

Our machine comprises a supporting base (a), provided with standards (I)b) at its lateral ends, the stand ards having respectively a centralvertical slot, and serving as guides, for a reciprocating quadrangularopen-top frame O.

The construction of the reciprocating frame may be observed by havingreference to Figs. 2, 3, and 4 and it will be noted that the samecomprises a body part c, from which extend laterally projecting membersd and e, and recessed portions f, which slide within the vertical slotsof the guides b b.- The lateral members (I and e are also connected withthe body 0 by means of webs g, to strengthen the frame. In thesupporting base is journaled a shaft h, and on the two projecting endsthereof are affixed crank-disks 'i. The crankdisks are connected bymeans of pitmen j with the wrist pins f 2 on the reciprocating frame 0.

On the inner faces of the body-part of the reciprocating frame isprovided a shoulder is to serve as an abutment for the top of the knifecarrier Z. The knife carrier is secured in place by set-screws 'm,inserted in threaded perforations therefor provided in the longitudinalwalls of the body of the reciprocating frame, and in correspondingtln'eaded-holes a, made in the longitudinal walls of the body of theknife carrier.

Since our reciprocating frame O is designed to receive knife-carriers ofdifferent shapes and sizes, to provide for the cutting out of the shapesof different styles of boxes, we provide, in the longitudinal walls ofthe reciprocating frame C, a series of threaded perforations m,

so that the set-screws may be moved from one to the other thereof, or aseries of set screws provided to secure the different types ofknife-carriers in place.

The knife-carrier is provided at its two upper ends, with transverselyarranged rods 0, on each of which are hingedly suspended pairs of armsp 1) made of spring steel, the lower extremities of which are made withinturned hooks p. Each of the arms p p is provided with a bolt q,inserted through the end-walls of the body of the knife-carrier, andsecured in place by nuts, and jam or lock nuts 1.

On the bolts q, intermediate of the Walls of the knifecarrier and thearms p p, are placed coil-springs s, which serve to hold the arms p p inthe position to which they are adjusted by means of the nuts 7". Theinner faces of the longitudinal walls of the body of the knifecarrierare made with shoulders t serving as an abutment for the tops of theknives u, and to receive the thrust of the knives upon the descent ofthe reciprocating frame O to cut through a stack of material.

The knives are secured in place by means of bolts to. On the supportingbase a is affixed a wooden top y, made with a series of apertures x 90arranged to permit the passage of the ends of the spring arms p p, upondescent of the reciprocating frame 0.

The operation of our machine is as follows: On the table top y isdeposited a stack of veneer strips 2, properly positioned with respectto the knives. Upon the rotation of the shaft h the reciprocating frameC will descend and cause the knives to to cut a stack of shapes out ofthe stack of veneer-stock z. The springs p p descending with the knives,enter the apertures :0 x in the table-top y, the said arms beingdeflected by the contact of their hook-portions p with the side faces ofthe material being cut, until the extremities of the arms have passedthe bottom of the stack of material, upon which said arms spring backinto place, and as the reciprocating frame O ascends, the hookextremities p of said arms will engage with and carry up the stack ofcut-out shapes as shown by z in Fig. 1.

With each succeeding operation of our machine, the stack of cut-outshapes z will increase in height, until it reaches beyond the top of thereciprocating frame 0, whereupon the projecting upper part of the stackcan be carried away.

The usual straight edge a is provided on the tabletop to guide and holdthe stack of veneer in proper relation to the knives.

A further advantage of our machine is the simplicity of the arrangementand operation thereof. A knifecarrier is to be provided for each styleor shape of box to be cut, and there is no adjustment or setting of theknives required. It is only necessary to keep them sharp. The Work ofchanging from one knife-carrier to another is readily done.

In the machines heretofore in use the knives had to be re-set as oftenas it was necessary to change from one style of box to another, and suchre-setting oi the knives involved considerable labor. And a furtheradvantage to be obtained from our machine is the stack cut-out materialis held in stacked up position, convenient for carrying away, instead ofbeing discharged in a dis-arranged manner.

We claim 1 In a machine of the character described, the combination withsupporting guides, and reciprocating mechanism, of a reciprocable framemade with interior shoulders or abutments, and with a series of threadedperfora- .tions below such abutments, set screws in such per-fora tions,a

inserted through said ends and adjustably holding the arms below theirpivotal points, and coil-springs on said bolts arranged to allow theextremities of said arms to be deflected during the down or cuttingstroke of the knife-carrier.

3. A machine of the character described comprising a table, and guidesthereon, a frame reciprocable in said guides and made with interiorshoulders 01' abutments, and having a series of perforations below suchabutments', set screws in such perforations; mechanism for reciproeatingthe frame; a knife-carrier removably secured by said set screws in saidframe and bearing against the abutments thereof; interior abutments onthe knife-carrier, knives secured in the latter and bearing against theabutments thereof; rods aflixed transversely in the ends of theknife-carrier, arms having inturned hooks at their lower extremities andpivotally suspended from the rods, threaded bolts and nuts thereon saidbolts being inserted through said ends and adjustably holding the armsbelow their pivotal points, and coilspi"ings on said' bolts arranged toallow the extremities of said arms to be deflected during the down orcutting stroke of the knife-carrier.

In testimony whereof, we have hereunto afiixed our signature in thepresence of two witnesses.

SAMUEL E. WRENN. DANIEL MARTIN.

Witnesses T. .T. GEISLER, ALPHA A. TURNER.

